package com.jingjiu.homeservicesbiz.Jwt;

import io.jsonwebtoken.*;
import io.jsonwebtoken.security.Keys;

import javax.crypto.SecretKey;
import java.util.Date;

public class JwtUtil {

private static long tokenExpiration = 60 * 60 * 1000L;
private static SecretKey tokenSignKey = Keys.hmacShaKeyFor("M0PKKI6pYGVWWfDZw90a0lTpGYX1d4AQ".getBytes());

public static String createToken(Long userId, String username) {
    String token = Jwts.builder().
            setSubject("USER_INFO").
            setExpiration(new Date(System.currentTimeMillis() + tokenExpiration)).
            claim("userId", userId).
            claim("username", username).
            signWith(tokenSignKey, SignatureAlgorithm.HS256).
            compact();
    return token;
}

    public static Claims parseToken(String token){
        if (token==null){
            throw new RuntimeException();
        }

        try{
            JwtParser jwtParser = Jwts.parserBuilder().setSigningKey(tokenSignKey).build();
            return jwtParser.parseClaimsJws(token).getBody();
        }catch (ExpiredJwtException e){
            throw new RuntimeException();
        }catch (JwtException e){
            throw new RuntimeException();
        }

    }
}